If you do a join on the lists of male and female first names from the 02000 census, you find that over 300 names appear in both lists. These include the ones you'd expect, such as Chris, Francis, Jamie, Kelly, Pat, and Terry, but also quite a few that were more interesting, such as Anthony, Charles, Dominique, Edward, Norman, Richard, and Thomas. It seems likely that some of these appear due to clerical error, but those surprising ones I listed appear with what would seem to be a statistically significant frequency. Women with traditionally male names seem much more common than the reverse.